Electronic coded lock

Abstract

The utility model discloses an electronic coded lock, which relates to the technical field of electronic coded locks, and comprises an upper cover, a lower cover, a shell, a code keyboard structure, a battery, a sliding locking structure and a lock head, the upper cover is arranged at the upper end of the shell, a reset hole is arranged on the upper cover, the lower cover is arranged at the lower end of the shell, and the lock head is arranged in the shell. One end of the password keyboard structure is located between the shell and the upper cover, the other end of the password keyboard structure penetrates through the upper cover and extends outwards, the sliding locking structure and the battery are located between the shell and the lower cover, and one end of the lock penetrates through the lower cover and is connected with the sliding locking structure. The utility model has a public mode and a private mode which can be freely switched, can improve the safety, is convenient to manage and high in use efficiency, improves the user experience, and also has the advantages of simple internal structure, reasonable design, low manufacturing cost, long service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of electronic combination lock technology, and in particular to an electronic combination lock. Background Art

[0002] Currently, there are many manufacturers of mechanical and electronic locks in China. The advantages of simple mechanical locks are their simplicity, reliability, and less prone to component damage. However, unlocking relies solely on a key. If a user forgets or loses their key, they cannot open the lock, causing significant inconvenience, especially in urgent situations. Electronic locks, on the other hand, are electronic products that use a password to control circuits or chips, thereby controlling the mechanical switch to lock and unlock. With technological advancements, electronic locks are becoming increasingly widespread. They are more intelligent and secure than traditional mechanical locks, and the password can be changed at will, eliminating the need for a key.

[0003] Most electronic combination locks on the market use gear drives and linkages, converting the rotational motion of the motor into the linear motion of the bolt through the meshing of multiple gears. This type of electronic combination lock has a complex internal structure, high manufacturing costs, and the gear meshing is prone to wear after prolonged use, leading to uneven opening and closing or malfunction. Furthermore, these locks only have one operating mode, offering limited functionality and failing to meet diverse user needs. Therefore, an electronic combination lock is needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide an electronic combination lock that aims to solve the aforementioned technical problems. This invention has two modes that can be freely switched: public and private. It can improve security, facilitate management, improve efficiency, enhance privacy protection, and improve user experience. It also has the advantages of simple internal structure, reasonable design, low manufacturing cost, and long service life.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] An electronic combination lock includes an upper cover, a lower cover, a housing, a keypad structure, a battery, a sliding locking structure, and a lock cylinder. The upper cover is mounted on the upper end of the housing and has a reset hole. The lower cover is mounted on the lower end of the housing. One end of the keypad structure is located between the housing and the upper cover, and the other end of the keypad structure extends outward through the upper cover. The sliding locking structure and the battery are located between the housing and the lower cover. One end of the lock cylinder passes through the lower cover and connects to the sliding locking structure. When unlocked, the sliding locking structure separates from the lock cylinder. When locked, the sliding locking structure resets and locks into place with the lock cylinder.

[0007] Preferably, the sliding locking structure includes a slider and a slider spring, one end of the slider spring is connected to the slider, the other end of the slider spring is connected to the outer shell, and the slider is provided with a stop part and a pressing part.

[0008] Preferably, the sliding locking structure further includes a locking tongue and a locking tongue spring. One end of the locking tongue is provided with a locking part, which is movably engaged with the lock head. The other end of the locking tongue is provided with a locking tongue spring hole and a locking tongue abutment part. One end of the locking tongue spring is located in the locking tongue spring hole, and the other end of the locking tongue spring is connected to the outer shell. The locking tongue abutment part is movably engaged with the abutment part of the slider.

[0009] Preferably, the sliding locking structure further includes a motor, the output end of which is provided with a motor eccentric wheel, and the motor eccentric wheel is movably connected to the stop part of the slider.

[0010] Preferably, the keypad structure includes a PCB assembly, a dome switch, and a silicone keypad. The dome switch is located between the PCB assembly and the silicone keypad. One end of the silicone keypad is connected to the top cover. The silicone keypad is electrically connected to the PCB assembly. The PCB assembly is provided with a battery spring, an unlocking element, and a locking element. The battery spring is electrically connected to the battery.

[0011] Preferably, one end of the lock head is provided with a locking clasp, and the other end of the lock head is provided with a rotating sleeve, which is mounted on the outer shell.

[0012] Preferably, the housing further includes a battery compartment and a torsion spring. The battery is installed in the battery compartment, and the battery compartment is detachably connected to the housing. One end of the torsion spring is connected to the housing, and the other end of the torsion spring is connected to the rotating sleeve.

[0013] Preferably, the outer wall of the rotating sleeve is provided with a torsion spring connecting part, a first locking recess and a second locking recess. The torsion spring connecting part is connected to the torsion spring. The first locking recess and the second locking recess are both adapted to the locking part of the lock tongue. The lower end of the rotating sleeve is provided with a pressing seat. The pressing seat can contact the unlocking element and the locking element on the PCB assembly.

[0014] Preferably, the housing is further provided with an opening and a USB interface, the USB interface being electrically connected to the PCB assembly, and one end of the battery compartment being located inside the opening.

[0015] Preferably, the outer side wall of the housing is provided with a plurality of rotary operating parts, the housing is provided with a support base, the battery compartment is installed at the upper end of the support base, the sliding locking structure, the motor and the rotating sleeve are all installed at the lower end of the support base, the lower end of the support base is also provided with a support column, and the rotating sleeve and the lock head are both sleeved on the support column.

[0016] This utility model of electronic combination lock has the following beneficial effects:

[0017] 1. The electronic combination lock of this utility model has a motor eccentric wheel on the output end of the motor. The motor eccentric wheel drives the slider to slide, so that the slider separates or abuts the lock tongue, thereby allowing the outer shell to rotate or lock. Compared with the previous complex gear and linkage structure, this utility model has the advantages of simple structure, reasonable design, higher transmission efficiency, low noise, low manufacturing cost and long service life.

[0018] 2. This utility model electronic combination lock has two modes: public and private, which can be switched freely. In public mode, the slider and the bolt are separated. After the motor unlocks, it does not rotate. When another user enters their password, the motor rotates and the lock can be locked.

[0019] In private mode, after the user enters the correct password and the motor unlocks, the motor immediately returns to the initial position. At this time, the outer shell is rotated to the locking position, so that the slider can move and press against the lock tongue to lock. This has the advantages of improving security, facilitating management, improving efficiency, enhancing privacy protection and improving user experience.

[0020] 3. In this utility model electronic combination lock, the battery compartment is assembled with the outer shell using screws. Compared with the battery compartment assembled with a snap switch, where pressing the snap switch unlocks the battery compartment and causes it to pop out, which allows children to easily remove the battery compartment and may cause the battery to be swallowed, this utility model uses screw assembly, which is highly safe and can effectively and easily pop out the battery. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural breakdown diagram of the present invention. Figure 1 ;

[0023] Figure 3 This is a structural breakdown diagram of the present invention. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the structure of this utility model excluding the lower cover and the lock head;

[0025] Figure 5 This is a structural diagram of the present invention without the top cover and keypad;

[0026] Figure 6 This is a schematic diagram of the outer shell of this utility model. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the outer shell of this utility model. Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the structure of this utility model without the outer casing and motor;

[0029] The numbers on the map are:

[0030] 1. Top cover; 2. Bottom cover; 3. Outer shell; 4. Keypad structure; 5. Battery; 6. Lock head; 7. Reset hole; 8. Slider; 9. Slider spring; 10. Stop part; 11. Abutting part; 12. Lock tongue; 13. Lock tongue spring; 14. Locking part; 15. Lock tongue abutting part; 16. Motor; 17. Motor eccentric wheel; 18. PCB assembly; 19. Dome switch piece; 20. Silicone keypad; 21. Battery spring; 22. Locking clasp; 23. Rotating sleeve; 24. Battery compartment; 25. Torsion spring; 26. Upper insertion part; 27. Lower insertion part; 28. Torsion spring connecting part; 29. ​​First locking recess; 30. Second locking recess; 31. Press seat; 32. Opening; 33. USB interface; 34. Knob operating part; 35. Support seat; 36. Support column; 37. Battery compartment mounting position; 38. Limiting and fixing part; 39. Buckle part; 40. Buckle connecting recess; 41. Movable hole; 42. Slider mounting position; 43. Lock tongue mounting position; 44. Motor mounting position; 45. Torsion spring mounting column; 46. Rotating sleeve limiting part; 47. Lower cover assembly part; 48. Unlocking element; 49. Locking element. DETAILED DESCRIPTION

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the product of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figure 1 and Figure 2 As shown, an electronic combination lock includes an upper cover 1, a lower cover 2, a housing 3, a keypad structure 4, a battery 5, a sliding locking structure, and a lock head 6. The upper cover 1 is installed on the upper end of the housing 3 and has a reset hole 7. The lower cover 2 is installed on the lower end of the housing 3. One end of the keypad structure 4 is located between the housing 3 and the upper cover 1, and the other end of the keypad structure 4 extends outward through the upper cover 1. The sliding locking structure and the battery 5 are located between the housing 3 and the lower cover 2. One end of the lock head 6 passes through the lower cover 2 and is connected to the sliding locking structure.

[0035] It should be noted that this utility model has two modes of use: private mode and public mode. The mode switching is as follows: Insert a pin into the button of the reset hole 7, press and hold the reset button for more than three seconds, and you will hear a long "beep" sound, indicating that you have switched to private mode; press and hold the reset button for more than three seconds, and you will hear two long "beep" sounds, indicating that you have switched to public mode.

[0036] like Figure 2 and Figure 4 As shown, the sliding locking structure includes a slider 8 and a slider spring 9. One end of the slider spring 9 is connected to the slider 8, and the other end of the slider spring 9 is connected to the outer shell 3. The slider 8 is provided with a stop part 10 and a pressing part 11.

[0037] like Figures 2 to 4 As shown, the sliding locking structure also includes a locking tongue 12 and a locking tongue spring 13. One end of the locking tongue 12 is provided with a locking part 14, which is movably engaged with the lock head 6. The other end of the locking tongue 12 is provided with a locking tongue spring hole and a locking tongue abutment part 15. One end of the locking tongue spring 13 is located in the locking tongue spring hole, and the other end of the locking tongue spring 13 is connected to the outer shell 3. The locking tongue abutment part 15 is movably engaged with the abutment part 11 of the slider 8.

[0038] like Figure 4 As shown, the sliding locking structure also includes a motor 16, and the output end of the motor 16 is provided with a motor eccentric wheel 17, which is movably connected to the stop part 10 of the slider 8.

[0039] like Figure 2 and Figure 3As shown, the keypad structure 4 includes a PCB assembly 18, a dome switch 19, and a silicone keypad 20. The dome switch 19 is located between the PCB assembly 18 and the silicone keypad 20. One end of the silicone keypad 20 is connected to the upper cover 1. The silicone keypad 20 is electrically connected to the PCB assembly 19. The PCB assembly 18 is provided with a battery spring 21, an unlocking element 48, and a locking element 49. The battery spring 21 is electrically connected to the battery 5. The silicone keypad 20 is provided with numeric keys, a C key, and an OK key.

[0040] It should be noted that in the public mode, the slider and the latch are in a separated state. When the user enters the password, the motor 16 rotates the motor eccentric wheel 17, causing the slider 8 to separate from the latch 12. The knob operation part 34 is then rotated to the unlock position to unlock the lock. At this time, the motor 16 does not rotate back, and the combination lock remains in the unlocked state. When another user enters their password, the motor 16 rotates back, and the knob operation part 34 is then rotated to the lock position to lock the lock.

[0041] In private mode, after entering the correct password, the motor 16 drives the motor eccentric wheel 17 to rotate, causing the slider 8 to separate from the latch 12. Rotate the knob operation part 34 to the unlock position to unlock. Then the motor 16 immediately returns to the initial position. Then rotate the knob operation part 34 to the lock position to make the slider 8 and the latch 12 press against each other to complete the locking.

[0042] It should be further noted that this utility model also features deceptive password input and password error alarm functions. Deceptive password input: Random characters can be entered before or after the correct password to mask the real password. A total of sixteen characters can be entered; if a consecutive segment of the password matches the set password, the password verification is successful, preventing others from snooping on the password. Password error alarm: If four consecutive incorrect password attempts are made to maliciously unlock the door, the keyboard will be locked for sixty seconds, and an alarm sound will be emitted. During this period, pressing any key will be ineffective, ensuring high security.

[0043] like Figure 2 As shown, one end of the lock head 6 is movably connected to the lock clasp 22, and the other end of the lock head 6 is provided with a rotating sleeve 23, which is mounted on the outer shell 3.

[0044] like Figure 2 As shown, the outer casing 3 also includes a battery compartment 24 and a torsion spring 25. The battery 5 is installed in the battery compartment 24, which is detachably connected to the outer casing 3. One end of the torsion spring 25 is connected to the outer casing 3, and the other end is connected to the rotating sleeve 23. When the outer casing 3 rotates 90°, the torsion spring 25 enhances the ergonomics.

[0045] like Figure 2 and Figure 3As shown, the inner wall of the rotating sleeve 23 is provided with an upper insertion part 26, and the inner wall of the lock head 6 is provided with a lower insertion part 27. The upper insertion part 26 and the lower insertion part 27 are tightly connected to improve stability.

[0046] like Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the outer side wall of the rotating sleeve 23 is provided with a torsion spring connecting part 28, a first locking recess 29 and a second locking recess 30. The torsion spring connecting part 28 is connected to the torsion spring 25. The first locking recess 29 and the second locking recess 30 are both adapted to the locking part 14 of the lock tongue 12. The lower end of the rotating sleeve 23 is provided with a pressing seat 31. The pressing seat 31 can be movably pressed and connected to the unlocking element 48 and the locking element 49 on the PCB assembly 18.

[0047] It should be noted that the unlocking element 48 is used to control the unlocking state, and the locking element 49 is used to control the locking state. When locking, the pressing seat 31 of the rotating sleeve 23 presses down on the locking element 49, and the combination lock is in a de-energized state; when unlocking, the pressing seat 31 of the rotating sleeve 23 presses down on the unlocking element 48, and the lock is energized.

[0048] like Figure 4 , Figure 5 and Figure 7 As shown, the outer casing 3 is also provided with an opening 32 and a USB interface 33. The USB interface 33 is electrically connected to the PCB assembly 18. One end of the battery compartment 24 is located inside the opening 32, which facilitates the removal and installation of the battery compartment 24.

[0049] It should be noted that this utility model also has a password decoding function. When a user accidentally forgets the password, they can obtain the decoding code from the agent using the device code, or use the USB interface 33 to connect to the decoder for decoding, which is highly practical.

[0050] like Figure 4 As shown, the outer wall of the outer casing 3 is provided with several knob operating parts 34. A support base 35 is provided inside the outer casing 3. The battery compartment 24 is mounted on the upper end of the support base 35. The sliding locking structure, motor 16, and rotating sleeve 23 are all mounted on the lower end of the support base 35. A support column 36 is also provided at the lower end of the support base 35. The rotating sleeve 23 and the lock head 6 are both sleeved on the support column 36. Several anti-slip strips are provided on the knob operating parts 34.

[0051] It should be noted that one end of the support column 36 is provided with a locking clasp 22. The locking clasp 22 moves synchronously with the support column 36. When the outer shell 3 is rotated, the support column 36 drives the locking clasp 22 to move synchronously to unlock and lock, while the position of the lock head 6 is fixed.

[0052] like Figure 7 As shown, the upper end of the support base 35 is provided with a battery compartment mounting position 37, which communicates with the opening 32. The battery compartment 24 and the outer shell 3 are assembled with screws, which facilitates the disassembly and installation of the battery compartment 24 and the battery 5.

[0053] like Figure 6 As shown, the upper end of the support base 35 is also provided with several limiting fasteners 38. During assembly, the upper end of the limiting fasteners 38 passes through the PCB assembly 18, the dome switch 19, the silicone keypad 20, and the top cover 1 in sequence, thereby fastening the connection between the PCB assembly 18, the dome switch 19, the silicone keypad 20, the top cover 1, and the outer shell 3.

[0054] like Figure 2 and Figure 5 As shown, the upper cover 1 is provided with a plurality of snap-fit ​​parts 39, and the inner side wall of the outer shell 3 is provided with a plurality of snap-fit ​​connection recesses 40 adapted to the snap-fit ​​parts 39, so that the upper cover 1 and the outer shell 3 are snap-fit ​​connected.

[0055] like Figure 7 As shown, the support base 35 is provided with a movable hole 41, and the pressing seat 31 of the rotating sleeve 23 can move within the movable hole 41.

[0056] like Figure 6 and Figure 7 As shown, the lower end of the support base 35 is provided with a slider mounting position 42, a latch mounting position 43, a motor mounting position 44, a torsion spring mounting post 45, a rotating sleeve limiting part 46, and several lower cover assembly parts 47. The slider 8 can move within the slider mounting position 42, the latch 12 can move within the latch mounting position 43, the motor 16 is located within the motor mounting position 44, and one end of the torsion spring 25 is connected to the torsion spring mounting post 45. When installing the lower cover 2, screws are passed through the lower cover 2 and the lower cover assembly parts 47 to securely install the lower cover 2 onto the outer shell 3. A gasket can also be placed between the lower cover 2 and the lock head 6 to improve the firmness.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An electronic combination lock, characterized in that: It includes an upper cover (1), a lower cover (2), a shell (3), a keypad structure (4), a battery (5), a sliding locking structure, and a lock head (6). The upper cover (1) is installed on the upper end of the shell (3) and has a reset hole (7). The lower cover (2) is installed on the lower end of the shell (3). One end of the keypad structure (4) is located between the shell (3) and the upper cover (1), and the other end of the keypad structure (4) extends outward through the upper cover (1). The sliding locking structure and the battery (5) are located between the shell (3) and the lower cover (2). One end of the lock head (6) passes through the lower cover (2) and is connected to the sliding locking structure.

2. The electronic combination lock according to claim 1, characterized in that: The sliding locking structure includes a slider (8) and a slider spring (9). One end of the slider spring (9) is connected to the slider (8), and the other end of the slider spring (9) is connected to the outer shell (3). The slider (8) is provided with a stop part (10) and a pressing part (11).

3. The electronic combination lock according to claim 2, characterized in that: The sliding locking structure also includes a locking tongue (12) and a locking tongue spring (13). One end of the locking tongue (12) is provided with a locking part (14), which is movably engaged with the lock head (6). The other end of the locking tongue (12) is provided with a locking tongue spring hole and a locking tongue abutment part (15). One end of the locking tongue spring (13) is located in the locking tongue spring hole, and the other end of the locking tongue spring (13) is connected to the outer shell (3). The locking tongue abutment part (15) is movably engaged with the abutment part (11) of the slider (8).

4. The electronic combination lock according to claim 3, characterized in that: The sliding locking structure also includes a motor (16), the output end of which is provided with a motor eccentric wheel (17), and the motor eccentric wheel (17) is movably connected to the stop part (10) of the slider (8).

5. The electronic combination lock according to claim 4, characterized in that: The keypad structure (4) includes a PCB assembly (18), a dome switch (19), and a silicone keypad (20). The dome switch (19) is located between the PCB assembly (18) and the silicone keypad (20). One end of the silicone keypad (20) is connected to the top cover (1). The PCB assembly (18) is provided with a battery spring (21), an unlocking element (48), and a locking element (49). The battery spring (21) is electrically connected to the battery (5).

6. The electronic combination lock according to claim 5, characterized in that: One end of the lock head (6) is provided with a locking clasp (22), and the other end of the lock head (6) is provided with a rotating sleeve (23), which is mounted on the outer shell (3).

7. The electronic combination lock according to claim 6, characterized in that: The outer casing (3) also includes a battery compartment (24) and a torsion spring (25). The battery (5) is installed in the battery compartment (24). The battery compartment (24) is detachably connected to the outer casing (3). One end of the torsion spring (25) is connected to the outer casing (3), and the other end of the torsion spring (25) is connected to the rotating sleeve (23).

8. The electronic combination lock according to claim 7, characterized in that: The outer side wall of the rotating sleeve (23) is provided with a torsion spring connecting part (28), a first locking recess (29) and a second locking recess (30). The torsion spring connecting part (28) is connected to the torsion spring (25). The first locking recess (29) and the second locking recess (30) are both adapted to the locking part (14) of the latch (12). The lower end of the rotating sleeve (23) is provided with a pressing seat (31). The pressing seat (31) can be connected to the unlocking element (48) and the locking element (49) on the PCB assembly (18).

9. The electronic combination lock according to claim 8, characterized in that: The outer casing (3) is also provided with an opening (32) and a USB interface (33), the USB interface (33) being electrically connected to the PCB assembly (18), and one end of the battery compartment (24) being located inside the opening (32).

10. The electronic combination lock according to claim 9, characterized in that: The outer wall of the outer casing (3) is provided with several knob operation parts (34). The outer casing (3) is provided with a support base (35). The battery compartment (24) is installed on the upper end of the support base (35). The sliding locking structure, motor (16) and rotating sleeve (23) are all installed on the lower end of the support base (35). The lower end of the support base (35) is also provided with a support column (36). The rotating sleeve (23) and the lock head (6) are both sleeved on the support column (36).

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